.pemf-blog {
      font-family: Arial, Helvetica, sans-serif;
      line-height: 1.75;
      color: #222;
      max-width: 980px;
      margin: 0 auto;
      padding: 24px;
    }
    .pemf-blog h1 {
      font-size: 34px;
      line-height: 1.25;
      margin-bottom: 16px;
    }
    .pemf-blog h2 {
      font-size: 26px;
      margin-top: 42px;
      border-bottom: 2px solid #e5e5e5;
      padding-bottom: 8px;
    }
    .pemf-blog h3 {
      font-size: 21px;
      margin-top: 28px;
    }
    .pemf-blog p {
      margin: 12px 0;
    }
    .pemf-blog .cn {
      color: #444;
      background: #fafafa;
      border-left: 4px solid #ddd;
      padding: 10px 14px;
      margin: 10px 0 18px;
    }
    .pemf-blog .note {
      background: #fff8e6;
      border-left: 4px solid #f0b429;
      padding: 14px 16px;
      margin: 18px 0;
    }
    .pemf-blog .medical-note {
      background: #eef7ff;
      border-left: 4px solid #2b7bbb;
      padding: 14px 16px;
      margin: 18px 0;
    }
    .pemf-blog table {
      width: 100%;
      border-collapse: collapse;
      margin: 20px 0;
      font-size: 15px;
    }
    .pemf-blog th,
    .pemf-blog td {
      border: 1px solid #ddd;
      padding: 12px;
      vertical-align: top;
    }
    .pemf-blog th {
      background: #f4f4f4;
      font-weight: 700;
    }
    .pemf-blog ul,
    .pemf-blog ol {
      padding-left: 24px;
    }
    .pemf-blog li {
      margin: 8px 0;
    }
    .pemf-blog .screenshot-box {
      border: 2px dashed #bbb;
      background: #fafafa;
      padding: 18px;
      margin: 22px 0;
      color: #333;
    }
    .pemf-blog .source-list li {
      word-break: break-word;
    }